[Devel] [PATCH hci-8.1 v3 0/1] selftests/bpf: run the xsk veth tests in a network namespace of their own

[Eva Kurchatova]

Patch for task https://virtuozzo.atlassian.net/browse/VSTOR-150731

Changes in v3:

- The namespace is unnamed, so it goes with its last process however
  the run ends, Ctrl-C, a timeout or a kill, and no outer run is left
  to delete host interfaces. Passing -d uses a pre-existing interface.
- Obtain max_skb_frags from the kernel BTF, removing -f option.
- Fix test_exit() exit status for skipped runs.
- With -d, the namespace is kept.
- Rebased.

Link to v2: http://lore.virtuozzo.com/kernel/20261022024816.2435565-1-eva.kurchatova@virtuozzo.com/T/#t

Changes in v2:

- -f is checked as the sysctl is, 1 to 45 and digits only, so a value
  that would wrap the fragment count or the packet array is refused.
- -f goes into the namespace only when the host's sysctl file could be
  read; a bare -f made getopts complain.
- No network namespace skips the tests, as no veth support does, rather
  than failing them.
- The -f description says the option tells the tests the kernel's limit
  and changes nothing in the kernel.
- The -d hint names the namespace in a usable form.
- test_exit() exits 1 for a skip as it does for the veth one; as the
  script has it.

Link to v1: http://lore.virtuozzo.com/kernel/20261020041218.1659392-1-eva.kurchatova@virtuozzo.com/T/#t

Eva Kurchatova (1):
  selftests/bpf: run the xsk veth tests in a network namespace of their
    own

 tools/testing/selftests/bpf/test_xsk.sh    | 30 +++++++++++++++--
 tools/testing/selftests/bpf/xsk_prereqs.sh |  2 +-
 tools/testing/selftests/bpf/xskxceiver.c   | 39 +++++++++++++++++++++-
 3 files changed, 67 insertions(+), 4 deletions(-)

-- 
2.56.0